Finish-remover.



UNITED srAEsP N1 orrron.

CARLETON ELLIS, OF MON TCLAIR, NEW JERSEY, ASSIG NOR TO CHADELOIDCHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF WEST VIRGINIA.

FINISH-REMOVER.

No Drawing.

T 0 all whom it may concern.

Be it known that I, CARLETON ELLIs, a citizen of the United States, andresident of Montclair, Essex county, New Jersey, have made certain newand useful Inventions Relating to Finish-Removers, of which thefollowing is a specification.

This invention relates especially to finish removers comprising phenolicfinish loosening material combined with alkaline palliative materialwhich may be incorporated with volatile organic finish solvents.

Carbolic and c'resylic acids and their higher homologues, guaiacol,beechwood'tar acid and other acid bodies of similar character derivedfrom wood, coal, etc, by destructive distillation, includingcreosotesderived from wood and coal tar, shale oil and blast furnace productssuch as neosote, etc'., are sometimes desirable in removers that areused under extreme service conditions be cause of their energeticloosening action on many paints and finishes. These materials are,however, disadvantageous because of their caustic and corrosive actionon the workmen and on finish surfaces to which they are applied undercertain circumstances. By the use of suitable palliative material,however, such corrosive properties may be mitigated and neutralizedwithout destroying the desirable loosening action on the finish and theremover rendered much more satisfactory in its action.

Carbolic acid may be combined with the desired quantity of inorganicalkaline material, such for example, as sodium or potassium hydrate,oxid of magnesia or organic alkaline or neutralizing material, such asanilin or methylamin. portion of such palliative material seems tocombine with the corrosive acid body so 'as to form complex compounds ofa much less corrosive and injurious character. Instead of forming thealkali phenate in this way, the previously prepared alkali phenates,such as sodium, or potassium carbolate or cresylate may be used inconnection with the volatile organic solvent material which may make upthe bulk of the remover. Potassium phenate, for example, is readilysoluble inalcohol and the phenates may be dissolved in such removersolvents. Other desirable palliatives are alkaline starch formed, forexample, by stirring starch into astrong solution of caustic soda toform a Specification of Letters Patent.

Even a small pro- Patented Nov. 16, 1915.

Application filed March 20, 1911. Serial No. 615,711.

ing a similar action.

In such removers it is desirable to use in addition to such phenolic andpalliative material suitable finish solvent material preferably of acomposite or mixed character. for example,coniprising loosening andpenetratmg finish solvent material. Among the loosening finish solvents,that is, solvents having a generally alcoholic character or action inremovers are the true alcohols, such as methyl ethyl, propyl, butyl,amyl, benzyl and the like, preferably in their commercial forms,including denatured alcohol and also other loosening solvents havinggenerally alcoholic action in removers, such as the various ketonicsolvents, including acetone. methyl acetone, methyl-ethyl ketone, oil ofacetone, as well as aldehydes and esters of various kinds. Among thepenetrating fin lsh solvent material, thatis, finish solvents having agenerally benzolic character or action in removers are included benzoland its homologues and the somewhat corresponchng petroleum solvents,such as gasolene, carbon bisulfid, carbon tetrachlorid,

acetylene-tetrachlorid and other chlorinated solvent compounds,turpentine, wood turpentine and the like. Although not necessary in allcases, various stifiening materials, such aswood fiour, starch, whiting,fullers earth, magnesia,- infusorial earth may be used, and also waxy,soapy or gelatinous stiffening material including paraffin, ce-

resin, ozocerite, beeswax, etc., it being, of

course, understood that all the ingredients 4 pounds. to which maybeadded 50 pounds of light oxid ofmagnesia.

Another illustrative remove-r may comprise methyl acetone 20 gallons 1nwhich 8 lons, wood alcohol 20 gallons. ceresin wax a fifty per centpounds-of potassium phenate have been dissolved, 15 gallons of benzol,4: gallons of pine oil and pounds of incorporate-il' ceresin Wax.

Another non-inflammableremover of this character giving good results onvarnish finishes, may be produced by incorporating 60 parts of a fortyper cent. aqueous solution of potassium crcsylate with parts of sol ventnaphtha containing 3 parts of dissolved parafiin, 10 parts of pine oil,so parts of benzvl alcohol and 3 parts ofturkey red oil or concentratedSulfonated cas'tor oil, Another remover may comprise 10 of benzol contai1g one part lissol ('eresin. '10 parts 0 cresylic acid Another renioi ofbenzol contai paraihin parts c o i-e Q in potash and sufficient a a Theinvention in tin .e'round sodium hydrate combining with the phenolicmaterial to iiorm alkali phenate.

2. lhe finish remover "formed approxiv mately from gallons of carbolicacid 13 gallons of aromatic penetrating solvent material, 20 gallons ofalcohol, stiffening material comprising mineral Wax and incorporatedcaustic alkali combining with the phenolic material;

The finish remover formed approxi mately from 20 gallons of phenol, 33gallons miscible loosening and penetrating finish solvents, stiffeningmaterial including War; and incorporated caustic alkali capable ofcombining with the phenolic material to mitigate or neutralize itscorrosive properties-without destroying the finish loosening actionthereof.

The substl n'tiallv non aqueous finish recomprising phenolic finishloosening; penetrat ng and loosening finish teriah sti ening materialincludali palliative material caor neutin lining its co'r o-osening actnon-aqueous finish reelv of volatile comand loosening finish solenina maerialgincorporated dissolved alkali ate and incorporated Waxy stiffeningThe substantiall non-aqueous finish re-' mover consisting largely ofcomposite or- ,Q'anic' volatile finish solvent material,misciblephenolic finish loosening material incorporated therewith andincorporated caustic alkali palliative material capable of combiningwith said phenolic material and miti- 'th said phenolic ma-- destroyingthe'finisli l, miscible phenolic finish loosgating orneutralizing itscorrosive action Without destroying the finish loosening action thereof.

CARLETGN ELLIS.

Witnesses: ,7

BIRDELLA M. ELLIS,

JOHN H. DERBY, Jr.

